Hooking up a leslie 122 and a 147 on two machines advice

[PGR]

Hi everyone.

Hoping the technically proficient can wade in on this one - I need some ideas on wiring I have my A100 now wired to the leslie 122 I have used all the correct kits and I even have echo controls Everything works great - it is all wired down to a box which happens to have a four pin female in it right now besides the 6 pin in use . The four pin is not used So I have arranged with my supplier of vintage parts to get two female amphenol parts that can be mounted in boxes - one in the A100 and one in the B3 these are 6 pin connectors (because I have 6 pin cable ) OK so why because, I also want to run from the second female port the cable over to the 147 leslie.

Im not total sure of the wiring and this is where I need some assistance. SO I'm thinking I can jump the over the power requirement . I can jump over the echo and the tremolo switching . and one half of the G pair from the preamp and then run a special grounding line instead of the second G


Does this make sense? and/or am I asking for a whole lot of trouble doing this? The objective is to be able to select either leslie or for that matter both If I want. I don't need to be able to have both hooked up and be able to select one on or off.



That is one part of this puzzle. the second part is to duplicate this on the B3 So right now I have only the 147 hookup on the B3 and it has only a tremolo on/off switch and no box for the 122 Do I even need the 122 box? I don't think I need it for the echo of coarse but what about the other box ? Is this the one where It picks up the B+ and the sound signal and sends it off to the Leslie. along with the switching pulse for the tremolo


So on this box near to the power input I have power and one half of the G signal B+ somewhere What can I jump from the first female to the second and what do I need to bring down the pipe other than the other half of the balanced line out - the second G?

this one I am really not sure about so help would be great

I want to be able to use the 147 on the A100 or the B3 and the 122 on the A100 and the B3 or both on either one

Appreciate the help

[David Anderson]

122 (6H) and 147 (6W) hookups are not compatible, particularly in terms of motor speed switching, which is done completely differently on a 122 than it is in a 147. The fact that both use the same 6-pin connector tends to make people think that they are more similar than they are.

Installing 122 and 147 hookups on the same organ is possible, but it is complicated due to the different motor switching setups. Plugging an amp into the wrong hookup can cause damage. You need to do some more research.

[andyg]

The question has been asked many times - and answered in great detail. If you look at the bottom of this thread you'll see a box called 'Similar Threads'. Start your research there.

[Jyvoipabo]

Installing 122 and 147 hookups on the same organ is possible, but it is complicated due to the different motor switching setups. Plugging an amp into the wrong hookup can cause damage. You need to do some more research.

Hello,

Connecting a Leslie 122 and a Leslie 147 on same organ is quite possible since I did it with a A100.

I used the 8020 Kit and a modified '26-1 console connector' and there were now 3 Half moon.

2 operates same as previous.
1 added one '/ L147_Only / L147& L122_Together / L122_Only /' to choose the cabinets configuration. It simply switch the sound before the 8020 Kit.

And a few resistor somewhere.

The problem is the cables. They must be carefully spotted.
This is not recommended if the set is intended to travel on stage.
But in a recording studio there is no problem.

JP

[enor]

Hello,

Connecting a Leslie 122 and a Leslie 147 on same organ is quite possible since I did it with a A100.

I used the 8020 Kit and a modified '26-1 console connector' and there were now 3 Half moon.

2 operates same as previous.

Wouldn't it be many times better to use a single halfmoon for both? The halfmoon switches are 2 pole after all....

[PGR]

OK so I am in thinking mode here and still figuring out the issues on hooking both leslies with different switching needs to one organ. The first choice to look at is the A100 mostly because it seems to be the easiest to deal with - it has already all the boxes needed for the 122 leslie. and works fine. I would like to use only one tremolo switch but Will I have a problem with the one switch? If I add the hook up to this switch based on the needs of the 147 I will have the lower voltage needs of the tremolo switch for the 122 getting mixed with the full voltage needs of the 147 on the same switch ? I am also some concerned about the 147 power sitting a finger tip away from the lower manual. Is this a real problem or not?

[Sweet Pete]

In the 50 years I've played gigs there have no doubt been close calls but I'm here to tell you the halfmoon switches can handle 122/147 no problem.
If things are properly soldered and there are no mechanical issues within the switch you are good to go!

This 147 switch is only seeing 18V. The wall wart and relay are down the line in the 147 'interface box'.
None of mine have 'kits' on the organs. Maybe a halfmoon on the B2 and thats it! Velcro on that one too!
I can play every one of them through any Leslie I want with just a 1/4" speaker level(or two) signal off the organ.
In most cases I just copy the original schematics.
I've built 122,147,251,760,822 interfaces.They are built the way I'd like them at a price I can afford.
The kits from Leslie were well built to mount and leave.This 147 box is 23 years old and has been plugged/unplugged a thousand times.
It's in a 'Hammond' branded box,not affiliated with the organ company.

Two Leslies at the same time never gets to a place that a dry(tone cab etc.) will take one good Leslie to.
Not that I haven't tried......my 'pair' includes a Ventilator to FOH which I can 'unplug' the motors on.

[Jyvoipabo]

OK so I am in thinking mode here and still figuring out the issues on hooking both leslies with different switching needs to one organ. The first choice to look at is the A100 mostly because it seems to be the easiest to deal with - it has already all the boxes needed for the 122 leslie. and works fine. I would like to use only one tremolo switch but Will I have a problem with the one switch? If I add the hook up to this switch based on the needs of the 147 I will have the lower voltage needs of the tremolo switch for the 122 getting mixed with the full voltage needs of the 147 on the same switch ? I am also some concerned about the 147 power sitting a finger tip away from the lower manual. Is this a real problem or not?

Hello,

I understand that you want a single switch for speed control.

There is a problem :
The 122 has a DC control by the console ground
The 147 has a AC control from the power mains.

You can not mix the 2 on a single switch.
It takes 2 or you must have to add a decoupling relay.
I think it is possible to graft on the kit of the 122 a sensitive static relay for this job.

JP

[enor]

Hello,

I understand that you want a single switch for speed control.

There is a problem :
The 122 has a DC control by the console ground
The 147 has a AC control from the power mains.

You can not mix the 2 on a single switch.
It takes 2 or you must have to add a decoupling relay.

Hmmm.

The halfmoon switch is DPDT. There's no problem whatsoever running the 147 on one side of the switch, and the 122 on the other.

[muckelroy]

I second Enor. Every half moon tremolo switch I’ve seen is dual pole.

If this were my organ, I’d use a 5 pin socket for the 122 and a 6 pin socket for the 147. It’s a slight layer of security. You can use a 5 to 6 pin cable for your Leslie 122 if you have a Leslie tremolo control that gets its B+ from the organ preamp.

[Steve Leigh]

Hi,

LSCA-3 should solve all these problems.

You might want to read (all) pages at this link: http://www.sl-prokeys.com/prokeys/lsca.htm

Also might want to contact Wes (moderator) and discuss this issue.

Best to all,

[BlueOliveB3]

I have a rig with this system on board, and it definitely does what it says on the tin...noiseless switching, stop as well as chorale and tremolo, and once everything is set up it's plug and play. Some caveats: once set up any new equipment brought into the picture needs to be converted to this system. Also, since it's running not only AC for the amplifiers but the AC for the motors down the cable, you absolutely cannot use it in any kind of permanent installation (churches or other institutions.) If touring, make sure to have full documentation of the system if repairs are needed and you don't do your own tech work, not many techs are familiar with it. Also you'll need to make your own cabling including spares, nothing is available off-the-shelf. But it's a good solution for a gigging player who does all his/her own work, and the switching is perfect. No pops, no delays, nothing. It just works. And you can set up any 6 or 9 pin Leslie to use the system. It won't directly adapt to the 11-pin system or Leslies using motor control boards. But 122, 251, 147, 760...piece of cake.

If retaining the stock system is preferred, caution should be exercised using the halfmoon for both 120V 147 switching and DC 122 switching, as damage to the halfmoon switch could cause those two worlds to collide and unhappy things can occur in those instances. Using low-voltage DC to switch a multi-pole relay is safer...

TP

Hi,

LSCA-3 should solve all these problems.

You might want to read (all) pages at this link: http://www.sl-prokeys.com/prokeys/lsca.htm

Also might want to contact Wes (moderator) and discuss this issue.

Best to all,

[enor]

Yes. I will add that - although I'm saying that the two sides of the Leslie switch can carry one function each, I don't actually think it's a good idea. On the other hand, I don't think the standard "122" way of switching is a good idea either, or the "147" way.

The 9 pin system is my absolute favorite among the stock systems, but the problem is it doesn't carry balanced audio and the connectors are becoming rare.

this system (devised by the biggest actor on the Swedish Hammond scene) is what I'm using these days
http://www.mafy.se/hammond/leslie-re...peakon-system/

[Steve Leigh]

I have a rig with this system on board, and it definitely does what it says on the tin...noiseless switching, stop as well as chorale and tremolo, and once everything is set up it's plug and play. Some caveats: once set up any new equipment brought into the picture needs to be converted to this system. Also, since it's running not only AC for the amplifiers but the AC for the motors down the cable, you absolutely cannot use it in any kind of permanent installation (churches or other institutions.) If touring, make sure to have full documentation of the system if repairs are needed and you don't do your own tech work, not many techs are familiar with it. Also you'll need to make your own cabling including spares, nothing is available off-the-shelf. But it's a good solution for a gigging player who does all his/her own work, and the switching is perfect. No pops, no delays, nothing. It just works. And you can set up any 6 or 9 pin Leslie to use the system. It won't directly adapt to the 11-pin system or Leslies using motor control boards. But 122, 251, 147, 760...piece of cake.

If retaining the stock system is preferred, caution should be exercised using the halfmoon for both 120V 147 switching and DC 122 switching, as damage to the halfmoon switch could cause those two worlds to collide and unhappy things can occur in those instances. Using low-voltage DC to switch a multi-pole relay is safer...

TP

Hi Todd,
I'm somewhat mixed up ....
Your reference to " Also, since it's running not only AC for the amplifiers but the AC for the motors down the cable, you absolutely cannot use it in any kind of permanent installation (churches or other institutions.) " got me confused ....

Unless the organ is ON - there is no live voltage on the Leslie cable. LSCA-3 turns on (switched AC) with the generator and AO-28 .... so I'm mixed up about this.

Best to all,

[Drawbar Dave]

All the tonewheel organs I owned or modified had a 12 VDC 4 pole relay that was tripped by a single half moon or toggle switch. The four pole did the switching for the three 6H, 6W and 9 pin receptacles. This gave the next owner the choice of all three Leslie configurations without having to figure out what the OP is grappling with.

Edit; the spinets didn’t have 6H connection before someone asks!